std::basic_ios::fail

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C++ Standard Library
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Input/output library
basic_streambuf basic_filebuf basic_stringbuf ios_base basic_ios basic_istream basic_ostream basic_iostream basic_ifstream basic_ofstream basic_fstream basic_istringstream basic_ostringstream basic_stringstream C-style I/O
std::basic_ios
Member functions basic_ios::basic_ios basic_ios::~basic_ios State functions basic_ios::good basic_ios::eof basic_ios::fail basic_ios::bad basic_ios::operator! basic_ios::operator bool basic_ios::rdstate basic_ios::setstate basic_ios::clear Formatting basic_ios::copyfmt basic_ios::fill Miscellaneous basic_ios::exceptions basic_ios::imbue basic_ios::rdbuf basic_ios::tie basic_ios::narrow basic_ios::widen

​bool fail() const;​

Returns ​true​ if an error has occurred on the associated stream. Specifically, returns ​true​ if badbit or failbit is set in ​rdstate()​.

Contents 1 Parameters 2 Return value 3 Example 4 See also

Parameters

(none)

Return value

​true​ if an error has occurred, ​false​ otherwise.

Example

This section is incomplete

See also

good	checks if no error has occurred i.e. I/O operations are available (public member function)
bad	checks if a non-recoverable error has occurred (public member function)
eof	checks if end-of-file has been reached (public member function)
operator!	checks if an error has occurred (synonym of fail()) (public member function)
operator bool	checks if no error has occurred (synonym of good()) (public member function)